3M 26102, PPS Series 2.0 Adapter, Type S16, 3/8 Female, 19 Thread BSP, 7100135934 
Dynabrade 98269 1/2" Female Coupler 
Dynabrade 94960 1/4" Composite-Style Coupler, 1/4" Female 
Insize 4644-1N8, NPT THREAD PLUG GAGE, 3-1/2x8NPT, 6928640346927
$670.65
NPT THREAD PLUG GAGE, 3-1/2x8NPT
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